Italian to English Bus/Financial Investment / Securities bonds

A mechanism in a bond which provides that once a stated event occurs entitling the holder to an additional coupon, that entitlment will also hold true at the same rate in subsequent years. The precise definition is as follows: "cristallizzazione, al verificarsi dell'evento dell’importo delle cedole aggiuntive eventuali al livello massimo, per l’anno in corso e per i successivi". Is there a specific technical term for this apart from "consolidation effect" which is what I intend to use?